doc: rename file endings from .sgml to .xml

As they are now XML files. In PostgreSQL itself they remain with
the .sgml suffix for backwards compatibility, but that's not
important for us.

doc/.gitignore

@@ -1,10 +1,9 @@
 HTML.index
-bookindex.sgml
+bookindex.xml
 html-stamp
 html/
-nochunks.dsl
 repmgr.html
-version.sgml
+version.xml
 *.fo
 *.pdf
 

doc/Makefile

@@ -24,11 +24,11 @@ endif
 
 override XSLTPROCFLAGS += --stringparam repmgr.version '$(REPMGR_VERSION)'
 
-GENERATED_SGML = version.sgml
-ALLSGML := $(wildcard $(srcdir)/*.sgml) $(GENERATED_SGML)
+GENERATED_XML = version.xml
+ALLXML := $(wildcard $(srcdir)/*.xml) $(GENERATED_XML)
 
 
-version.sgml: $(repmgr_top_builddir)/repmgr_version.h
+version.xml: $(repmgr_top_builddir)/repmgr_version.h
 	{ \
 	  echo "<!ENTITY repmgrversion \"$(REPMGR_VERSION)\">"; \
 	} > $@
@@ -40,14 +40,14 @@ version.sgml: $(repmgr_top_builddir)/repmgr_version.h
 
 html: html-stamp
 
-html-stamp: stylesheet.xsl repmgr.sgml $(ALLSGML)
+html-stamp: stylesheet.xsl repmgr.xml $(ALLXML)
 	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
 	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) $(XSLTPROC_HTML_FLAGS) $(wordlist 1,2,$^)
 	cp $(srcdir)/stylesheet.css  $(srcdir)/website-docs.css html/
 	touch $@
 
 # single-page HTML
-repmgr.html: stylesheet-html-nochunk.xsl repmgr.sgml $(ALLSGML)
+repmgr.html: stylesheet-html-nochunk.xsl repmgr.xml $(ALLXML)
 	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
 	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) $(XSLTPROC_HTML_FLAGS) -o $@ $(wordlist 1,2,$^)
 
@@ -66,7 +66,7 @@ repmgr.pdf:
 
 # Standard paper size
 
-repmgr-A4.fo: stylesheet-fo.xsl repmgr.sgml $(ALLSGML)
+repmgr-A4.fo: stylesheet-fo.xsl repmgr.xml $(ALLXML)
 	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
 	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) --stringparam paper.type A4 -o $@ $(wordlist 1,2,$^)
 
@@ -75,7 +75,7 @@ repmgr-A4.pdf: repmgr-A4.fo
 
 # North American paper size
 
-repmgr-US.fo: stylesheet-fo.xsl repmgr.sgml $(ALLSGML)
+repmgr-US.fo: stylesheet-fo.xsl repmgr.xml $(ALLXML)
 	$(XMLLINT) $(XMLINCLUDE) --noout --valid $(word 2,$^)
 	$(XSLTPROC) $(XMLINCLUDE) $(XSLTPROCFLAGS) --stringparam paper.type USletter -o $@ $(wordlist 1,2,$^)
 
@@ -90,7 +90,7 @@ install: html
 
 clean:
 	rm -f html-stamp
-	rm -f HTML.index $(GENERATED_SGML)
+	rm -f HTML.index $(GENERATED_XML)
 
 maintainer-clean:
 	rm -rf html

doc/filelist.sgml

@@ -1,90 +0,0 @@
-<!-- doc/filelist.sgml -->
-
-<!ENTITY legal      SYSTEM "legal.sgml">
-
-<!ENTITY bookindex  SYSTEM "bookindex.sgml">
-
-<!--
- Some parts of the documentation are also source for some plain-text
- files used during installation.  To selectively ignore or include
- some parts (e.g., external xref's) when generating these files we use
- these parameter entities.  See also standalone-install.sgml.
- -->
-<!ENTITY % standalone-ignore  "INCLUDE">
-<!ENTITY % standalone-include "IGNORE">
-
-<!-- doc/filelist.sgml -->
-
-<!--
- By default, no index is included.  Use -i include-index on the command line
- to include it.
- -->
-<!ENTITY % include-index "IGNORE">
-
-<!--
- Create empty index element for processing by XSLT stylesheet.
- -->
-<!ENTITY % include-xslt-index "IGNORE">
-
-<!--
- Include external documentation sections
- -->
-
-<!ENTITY overview      SYSTEM "overview.sgml">
-<!ENTITY install SYSTEM "install.sgml">
-<!ENTITY install-requirements      SYSTEM "install-requirements.sgml">
-<!ENTITY install-packages      SYSTEM "install-packages.sgml">
-<!ENTITY install-source      SYSTEM "install-source.sgml">
-<!ENTITY quickstart      SYSTEM "quickstart.sgml">
-<!ENTITY configuration      SYSTEM "configuration.sgml">
-<!ENTITY configuration-file      SYSTEM "configuration-file.sgml">
-<!ENTITY configuration-file-required-settings      SYSTEM "configuration-file-required-settings.sgml">
-<!ENTITY configuration-file-log-settings      SYSTEM "configuration-file-log-settings.sgml">
-<!ENTITY configuration-file-service-commands   SYSTEM "configuration-file-service-commands.sgml">
-<!ENTITY cloning-standbys  SYSTEM "cloning-standbys.sgml">
-<!ENTITY promoting-standby  SYSTEM "promoting-standby.sgml">
-<!ENTITY follow-new-primary  SYSTEM "follow-new-primary.sgml">
-<!ENTITY switchover  SYSTEM "switchover.sgml">
-
-<!ENTITY event-notifications  SYSTEM "event-notifications.sgml">
-<!ENTITY upgrading-repmgr  SYSTEM "upgrading-repmgr.sgml">
-
-<!ENTITY repmgrd-overview SYSTEM "repmgrd-overview.sgml">
-<!ENTITY repmgrd-automatic-failover SYSTEM "repmgrd-automatic-failover.sgml">
-<!ENTITY repmgrd-configuration SYSTEM "repmgrd-configuration.sgml">
-<!ENTITY repmgrd-operation SYSTEM "repmgrd-operation.sgml">
-<!ENTITY repmgrd-bdr SYSTEM "repmgrd-bdr.sgml">
-
-<!ENTITY repmgr-primary-register SYSTEM "repmgr-primary-register.sgml">
-<!ENTITY repmgr-primary-unregister SYSTEM "repmgr-primary-unregister.sgml">
-<!ENTITY repmgr-standby-clone SYSTEM "repmgr-standby-clone.sgml">
-<!ENTITY repmgr-standby-register SYSTEM "repmgr-standby-register.sgml">
-<!ENTITY repmgr-standby-unregister SYSTEM "repmgr-standby-unregister.sgml">
-<!ENTITY repmgr-standby-promote SYSTEM "repmgr-standby-promote.sgml">
-<!ENTITY repmgr-standby-follow SYSTEM "repmgr-standby-follow.sgml">
-<!ENTITY repmgr-standby-switchover SYSTEM "repmgr-standby-switchover.sgml">
-<!ENTITY repmgr-witness-register SYSTEM "repmgr-witness-register.sgml">
-<!ENTITY repmgr-witness-unregister SYSTEM "repmgr-witness-unregister.sgml">
-<!ENTITY repmgr-node-status SYSTEM "repmgr-node-status.sgml">
-<!ENTITY repmgr-node-check SYSTEM "repmgr-node-check.sgml">
-<!ENTITY repmgr-node-rejoin SYSTEM "repmgr-node-rejoin.sgml">
-<!ENTITY repmgr-node-service SYSTEM "repmgr-node-service.sgml">
-<!ENTITY repmgr-cluster-show SYSTEM "repmgr-cluster-show.sgml">
-<!ENTITY repmgr-cluster-matrix SYSTEM "repmgr-cluster-matrix.sgml">
-<!ENTITY repmgr-cluster-crosscheck SYSTEM "repmgr-cluster-crosscheck.sgml">
-<!ENTITY repmgr-cluster-event SYSTEM "repmgr-cluster-event.sgml">
-<!ENTITY repmgr-cluster-cleanup SYSTEM "repmgr-cluster-cleanup.sgml">
-<!ENTITY repmgr-daemon-status SYSTEM "repmgr-daemon-status.sgml">
-<!ENTITY repmgr-daemon-start SYSTEM "repmgr-daemon-start.sgml">
-<!ENTITY repmgr-daemon-stop SYSTEM "repmgr-daemon-stop.sgml">
-<!ENTITY repmgr-daemon-pause SYSTEM "repmgr-daemon-pause.sgml">
-<!ENTITY repmgr-daemon-unpause SYSTEM "repmgr-daemon-unpause.sgml">
-
-<!ENTITY appendix-release-notes  SYSTEM "appendix-release-notes.sgml">
-<!ENTITY appendix-faq      SYSTEM "appendix-faq.sgml">
-<!ENTITY appendix-signatures      SYSTEM "appendix-signatures.sgml">
-<!ENTITY appendix-packages      SYSTEM "appendix-packages.sgml">
-<!ENTITY appendix-support SYSTEM "appendix-support.sgml">
-
-<!ENTITY bookindex  SYSTEM "bookindex.sgml">
-

doc/filelist.xml

@@ -0,0 +1,90 @@
+<!-- doc/filelist.xml -->
+
+<!ENTITY legal      SYSTEM "legal.xml">
+
+<!ENTITY bookindex  SYSTEM "bookindex.xml">
+
+<!--
+ Some parts of the documentation are also source for some plain-text
+ files used during installation.  To selectively ignore or include
+ some parts (e.g., external xref's) when generating these files we use
+ these parameter entities.  See also standalone-install.sgml.
+ -->
+<!ENTITY % standalone-ignore  "INCLUDE">
+<!ENTITY % standalone-include "IGNORE">
+
+<!-- doc/filelist.xml -->
+
+<!--
+ By default, no index is included.  Use -i include-index on the command line
+ to include it.
+ -->
+<!ENTITY % include-index "IGNORE">
+
+<!--
+ Create empty index element for processing by XSLT stylesheet.
+ -->
+<!ENTITY % include-xslt-index "IGNORE">
+
+<!--
+ Include external documentation sections
+ -->
+
+<!ENTITY overview      SYSTEM "overview.xml">
+<!ENTITY install SYSTEM "install.xml">
+<!ENTITY install-requirements      SYSTEM "install-requirements.xml">
+<!ENTITY install-packages      SYSTEM "install-packages.xml">
+<!ENTITY install-source      SYSTEM "install-source.xml">
+<!ENTITY quickstart      SYSTEM "quickstart.xml">
+<!ENTITY configuration      SYSTEM "configuration.xml">
+<!ENTITY configuration-file      SYSTEM "configuration-file.xml">
+<!ENTITY configuration-file-required-settings      SYSTEM "configuration-file-required-settings.xml">
+<!ENTITY configuration-file-log-settings      SYSTEM "configuration-file-log-settings.xml">
+<!ENTITY configuration-file-service-commands   SYSTEM "configuration-file-service-commands.xml">
+<!ENTITY cloning-standbys  SYSTEM "cloning-standbys.xml">
+<!ENTITY promoting-standby  SYSTEM "promoting-standby.xml">
+<!ENTITY follow-new-primary  SYSTEM "follow-new-primary.xml">
+<!ENTITY switchover  SYSTEM "switchover.xml">
+
+<!ENTITY event-notifications  SYSTEM "event-notifications.xml">
+<!ENTITY upgrading-repmgr  SYSTEM "upgrading-repmgr.xml">
+
+<!ENTITY repmgrd-overview SYSTEM "repmgrd-overview.xml">
+<!ENTITY repmgrd-automatic-failover SYSTEM "repmgrd-automatic-failover.xml">
+<!ENTITY repmgrd-configuration SYSTEM "repmgrd-configuration.xml">
+<!ENTITY repmgrd-operation SYSTEM "repmgrd-operation.xml">
+<!ENTITY repmgrd-bdr SYSTEM "repmgrd-bdr.xml">
+
+<!ENTITY repmgr-primary-register SYSTEM "repmgr-primary-register.xml">
+<!ENTITY repmgr-primary-unregister SYSTEM "repmgr-primary-unregister.xml">
+<!ENTITY repmgr-standby-clone SYSTEM "repmgr-standby-clone.xml">
+<!ENTITY repmgr-standby-register SYSTEM "repmgr-standby-register.xml">
+<!ENTITY repmgr-standby-unregister SYSTEM "repmgr-standby-unregister.xml">
+<!ENTITY repmgr-standby-promote SYSTEM "repmgr-standby-promote.xml">
+<!ENTITY repmgr-standby-follow SYSTEM "repmgr-standby-follow.xml">
+<!ENTITY repmgr-standby-switchover SYSTEM "repmgr-standby-switchover.xml">
+<!ENTITY repmgr-witness-register SYSTEM "repmgr-witness-register.xml">
+<!ENTITY repmgr-witness-unregister SYSTEM "repmgr-witness-unregister.xml">
+<!ENTITY repmgr-node-status SYSTEM "repmgr-node-status.xml">
+<!ENTITY repmgr-node-check SYSTEM "repmgr-node-check.xml">
+<!ENTITY repmgr-node-rejoin SYSTEM "repmgr-node-rejoin.xml">
+<!ENTITY repmgr-node-service SYSTEM "repmgr-node-service.xml">
+<!ENTITY repmgr-cluster-show SYSTEM "repmgr-cluster-show.xml">
+<!ENTITY repmgr-cluster-matrix SYSTEM "repmgr-cluster-matrix.xml">
+<!ENTITY repmgr-cluster-crosscheck SYSTEM "repmgr-cluster-crosscheck.xml">
+<!ENTITY repmgr-cluster-event SYSTEM "repmgr-cluster-event.xml">
+<!ENTITY repmgr-cluster-cleanup SYSTEM "repmgr-cluster-cleanup.xml">
+<!ENTITY repmgr-daemon-status SYSTEM "repmgr-daemon-status.xml">
+<!ENTITY repmgr-daemon-start SYSTEM "repmgr-daemon-start.xml">
+<!ENTITY repmgr-daemon-stop SYSTEM "repmgr-daemon-stop.xml">
+<!ENTITY repmgr-daemon-pause SYSTEM "repmgr-daemon-pause.xml">
+<!ENTITY repmgr-daemon-unpause SYSTEM "repmgr-daemon-unpause.xml">
+
+<!ENTITY appendix-release-notes  SYSTEM "appendix-release-notes.xml">
+<!ENTITY appendix-faq      SYSTEM "appendix-faq.xml">
+<!ENTITY appendix-signatures      SYSTEM "appendix-signatures.xml">
+<!ENTITY appendix-packages      SYSTEM "appendix-packages.xml">
+<!ENTITY appendix-support SYSTEM "appendix-support.xml">
+
+<!ENTITY bookindex  SYSTEM "bookindex.xml">
+

doc/legal.xml

@@ -1,4 +1,4 @@
-<!-- doc/legal.sgml -->
+<!-- doc/legal.xml -->
 
 <date>2017</date>
 

doc/repmgr.xml

@@ -1,12 +1,12 @@
-<!-- doc/repmgr.sgml -->
+<!-- doc/repmgr.xml -->
 
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
           "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [
-          <!ENTITY % version SYSTEM "version.sgml">
+          <!ENTITY % version SYSTEM "version.xml">
           %version;
 
-          <!ENTITY % filelist SYSTEM "filelist.sgml">
+          <!ENTITY % filelist SYSTEM "filelist.xml">
           %filelist;
 
           <!ENTITY repmgr "<productname>repmgr</productname>">